Hi.
I've posted this question to several farcebook aquatic plant groups but so far gotten no replies. I'm hoping there may be some wiser minds here who can help. As a new member i can't post links yet but will endevor to do so when i can. For now i'll otherwise include the name of the paper and authors of items mentioned.
Has anyone experienced or otherwise come across any information relating to toxicity issues with water wisteria (Hygrophila difformis)? I heard a vauge, non-descript and unreferenced mention of H. difformis toxicity and wanted to find out more details. Tracking back references, the origin of the claim seems to primary come from one paper (A Details study on Hygrophila difformis by Samanta Krishanu) which states:
"When first submerged in an aquarium or pond this glands produce a toxic substances that may be toxic to some fish. So take great care when handling than as any damage seems to give off the toxin. Once they have been in the water a while the poison seems to disappear."
The paper provides no further illumination into the matter. It seems there have been a few studies into H. difformis and it's extracts however, at least some of which may provide some possible clues, though i'm struggling with terminology. One study looked at anesthetic properties in mice and found it effective (and non-toxic). Another looked at it as a control mechanism for flat worms, and another, possibly the most promising, looked at it as an inhibitor for some cyanobacteria "due possibly to its release of toxic phosphorus-containing allelochemicals". I haven't been able to find the full text of the latter paper but the abstract is available under the paper's name,
Inhibitory effects of Hygrophila difformis on the growth of Microcystis aeruginosa by Meng Lihua, Liu Yixin.
I don't really understand what is meant by 'toxic phosphorus-containing allelochemicals' however i gather it is something akin to herbicidal properties? Not really sure. If anyone is able to translate botanist to English or is otherwise familiar with any concrete information relating to toxicity, i'd be interested to hear.
Cheers.
I've posted this question to several farcebook aquatic plant groups but so far gotten no replies. I'm hoping there may be some wiser minds here who can help. As a new member i can't post links yet but will endevor to do so when i can. For now i'll otherwise include the name of the paper and authors of items mentioned.
Has anyone experienced or otherwise come across any information relating to toxicity issues with water wisteria (Hygrophila difformis)? I heard a vauge, non-descript and unreferenced mention of H. difformis toxicity and wanted to find out more details. Tracking back references, the origin of the claim seems to primary come from one paper (A Details study on Hygrophila difformis by Samanta Krishanu) which states:
"When first submerged in an aquarium or pond this glands produce a toxic substances that may be toxic to some fish. So take great care when handling than as any damage seems to give off the toxin. Once they have been in the water a while the poison seems to disappear."
The paper provides no further illumination into the matter. It seems there have been a few studies into H. difformis and it's extracts however, at least some of which may provide some possible clues, though i'm struggling with terminology. One study looked at anesthetic properties in mice and found it effective (and non-toxic). Another looked at it as a control mechanism for flat worms, and another, possibly the most promising, looked at it as an inhibitor for some cyanobacteria "due possibly to its release of toxic phosphorus-containing allelochemicals". I haven't been able to find the full text of the latter paper but the abstract is available under the paper's name,
Inhibitory effects of Hygrophila difformis on the growth of Microcystis aeruginosa by Meng Lihua, Liu Yixin.
I don't really understand what is meant by 'toxic phosphorus-containing allelochemicals' however i gather it is something akin to herbicidal properties? Not really sure. If anyone is able to translate botanist to English or is otherwise familiar with any concrete information relating to toxicity, i'd be interested to hear.
Cheers.